/* Declarations for rtx-reader support for gen* routines.
Copyright (C) 2000, 2002, 2003, 2004 Free Software Foundation, Inc.
This file is part of GCC.
GCC is free software; you can redistribute it and/or modify it under
the terms of the GNU General Public License as published by the Free
Software Foundation; either version 2, or (at your option) any later
version.
GCC is distributed in the hope that it will be useful, but WITHOUT ANY
WARRANTY; without even the implied warranty of MERCHANTABILITY or
FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
for more details.
You should have received a copy of the GNU General Public License
along with GCC; see the file COPYING. If not, write to the Free
Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA
02110-1301, USA. */
#ifndefGCC_GENSUPPORT_H
#defineGCC_GENSUPPORT_Hstruct obstack;
externstruct obstack *rtl_obstack;
externconstchar *in_fname;
externintinit_md_reader_args_cb (int, char **, bool (*)(constchar *));
externintinit_md_reader_args (int, char **);
extern rtx read_md_rtx (int *, int *);
externvoidmessage_with_line (int, constchar *, ...)
ATTRIBUTE_PRINTF_2;
/* Set this to 0 to disable automatic elision of insn patterns which
can never be used in this configuration. See genconditions.c.
Must be set before calling init_md_reader. */externint insn_elision;
/* If the C test passed as the argument can be evaluated at compile
time, return its truth value; else return -1. The test must have
appeared somewhere in the machine description when genconditions
was run. */externintmaybe_eval_c_test (constchar *);
/* Add an entry to the table of conditions. Used by genconditions and
by read-rtl.c. */externvoidadd_c_test (constchar *, int);
/* This structure is used internally by gensupport.c and genconditions.c. */struct c_test
{
constchar *expr;
int value;
};
#ifdef__HASHTAB_H__extern hashval_t hash_c_test (constvoid *);
externintcmp_c_test (constvoid *, constvoid *);
externvoidtraverse_c_tests (htab_trav, void *);
#endifexternintn_comma_elts (constchar *);
externconstchar *scan_comma_elt (constchar **);
/* Predicate handling: helper functions and data structures. */struct pred_data
{
struct pred_data *next; /* for iterating over the set of all preds */constchar *name; /* predicate name */
bool special; /* special handling of modes? *//* data used primarily by genpreds.c */constchar *c_block; /* C test block */
rtx exp; /* RTL test expression *//* data used primarily by genrecog.c */enum rtx_code singleton; /* if pred takes only one code, that code */
bool allows_non_lvalue; /* if pred allows non-lvalue expressions */
bool allows_non_const; /* if pred allows non-const expressions */
bool codes[NUM_RTX_CODE]; /* set of codes accepted */
};
externstruct pred_data *first_predicate;
externstruct pred_data *lookup_predicate (constchar *);
externvoidadd_predicate (struct pred_data *);
#defineFOR_ALL_PREDICATES(p) for (p = first_predicate; p; p = p->next)
/* This callback will be invoked whenever an rtl include directive is
processed. To be used for creation of the dependency file. */externvoid (*include_callback) (constchar *);
#endif/* GCC_GENSUPPORT_H */